Open Access Three-dimensional Magnetic Resonance Imaging of Lung and Liver Tumors in Mice by Use of Transversal Multislice Magnetic Resonance Images

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Abstract:

Purpose: To diagnose lung and liver tumors experimentally induced in mice in three-dimensional magnetic resonance (MR) images constructed by superimposing transversal multislice MR images of thoracic and abdominal regions taken under a high magnetic field of 7.05 tesla (T).

Methods: Lung and liver tumors were induced by administration of urethane to A/J mice and implantation of transplantable colon-26 cells into BALB/c mice, respectively. Two-dimensional (2-D) multislice MR images from the thoracic to abdominal regions were taken under the proton density-weighted conditions. Each organ in the 2-D MR images was pseudocolored, and a three-dimensional (3-D) image was constructed by superimposing them on a UNIX computer, using volume-rendering software.

Results: In the normal mouse, each organ in the thoracic and abdominal regions was three-dimensionally imaged and was clearly distinguished from the others. In mice with tumors in the lung or liver, the pathologic changes in the tissue could be visualized in 3-D images.

Conclusions: The MR images three-dimensionally constructed by use of a method combining MR imaging under a high magnetic field of 7.05 T and a computer technique using volume-rendering software was useful for diagnosis of lung and liver tumors experimentally induced in mice.

Document Type: Research Article

Affiliations: 1: Laboratory of Radiation Biology, Laboratory of Experimental Animal Science, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 0600818 2: Division of Electronics and Information Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-0818, and 4 Technoscience Laboratory Company, Ltd., Ebetsu 069-0854, Japan 3: Laboratory of Experimental Animal Science, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 0600818

Publication date: April 1, 2001

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  • Comparative Medicine (CM), an international journal of comparative and experimental medicine, is the leading English-language publication in the field and is ranked by the Science Citation Index in the upper third of all scientific journals. The mission of CM is to disseminate high-quality, peer-reviewed information that expands biomedical knowledge and promotes human and animal health through the study of laboratory animal disease, animal models of disease, and basic biologic mechanisms related to disease in people and animals.

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